Key learning points

1. The symbol < means: less than.
2. The symbol > means: greater than.
3. The symbol ≤ means: less than or equal to.
4. The symbol ≥ means: greater than or equal to.

Keywords

• Digit - A digit is one of the symbols of a number system. In our number system we use the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.

• Integer - An integer is any positive or negative whole number or zero. E.g. -2, 0, 153 are all examples of integers.

Common misconception